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quercus rubra/hypersensibilité
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Woodman's disease: hypersensitivity pneumonitis from cutting live trees.
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A 28-year-old man developed multiple episodes of fever, cough, shortness of breath, and leukocytosis several hours after cutting live oak and maple trees. Fungal cultures of wood chips from oak and maple trees were positive for Penicillium (three species), Paecilomyces sp., Aspergillus niger,
Constituents from oak bark (Quercus robur L.) inhibit degranulation and allergic mediator release from basophils and mast cells in vitro.
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BACKGROUND
Oak bark has been used since ancient times in Europaen ethnomedicine because of its adstringent, antimicrobial and hemostatic features, e.g. as a remedy for the treatment of wounds and skin diseases.
OBJECTIVE
Oak bark tannins are considered as bioactive natural products, interacting with
Evaluating the response of patients undergoing both allergy skin testing and in vitro allergy testing with the ImmunoCAP Technology System.
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OBJECTIVE
To evaluate the response of patients who underwent both skin and in vitro allergy testing, both of which are accepted methods.
METHODS
Retrospective review of the case notes of 100 patients evaluated by both testing methods for allergic disease.
CONCLUSIONS
A total of 62 patients (62%)
Assessment of sensitization to holm oak (Quercus ilex) pollen in the Mérida area (Spain).
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Sensitization to Quercus ilex (holm oak) was studied in 760 patients with clinically suspected sensitization to aeroallergens. Prick tests with commercial extracts of Q. ilex proved positive in 27 patients; none were monosensitive. Nasal and conjunctival provocation tests and specific IgE (RAST)
Damage of staphylococcal cytoplasmic membrane by Quercus infectoria G. Olivier and its components.
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OBJECTIVE
In traditional Thai medicine, nutgall of Quercus infectoria G. Olivier is well-documented as an effective agent for wound and skin infections. The present study was aimed to establish modes of action of the ethanol extract of the plant as well as its main constituents to induce
[Sensitization to Castanea sativa pollen and pollinosis in northern Extremadura (Spain)].
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BACKGROUND
Castanea sativa pollen allergy has generally been considered to be uncommon and clinically insignificant. In our geographical area (Plasencia, Cáceres, Spain) Castanea sativa pollen is a major pollen.
OBJECTIVE
To determine the atmospheric fluctuations and prevalence of patients
[Contact dermatitis by Frullania dilatata (L) Dum].
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The Bordeles School of Le Coulant described in 1966, a contact dermatitis produced by "hepatics" of the Frullania genus. The hepatics together with the mosses and sphagnus form the group of Bryophytes. Only the hepatics with leaves or Jungermaniales have a capacity to cause sensitivity. They grow in
Anaphylactic reaction to ingestion of Quercus ilex acorn nut.
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BACKGROUND
A patient experienced an anaphylactic reaction after eating acorn nuts, fruit of the holm oak (Quercus ilex), one of the most abundant trees in Spain. Several urticaria episodes upon ingestion of peanuts were also referred.
OBJECTIVE
To assess the hypersensitivity reaction to acorn and to
Phenological behaviour of Quercus in Ourense (NW Spain) and its relationship with the atmospheric pollen season.
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Knowing the beginning of the pollen season is of particular importance to people allergic to a given pollen. Phenological studies in combination with aerobiological studies enable us to observe the relationship between the reproductive phenology of the species and their airborne pollen curves. They
Proteomic identification of allergenic proteins in red oak (Quercus rubra) pollen.
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Platanus pollen allergen, Pla a 1: quantification in the atmosphere and influence on a sensitizing population.
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BACKGROUND
The allergic response in susceptible patients does not always coincide with the presence and magnitude of airborne pollen counts. The prevalence of allergy to Platanus is currently moderate, although the percentage of monosensitized patients is low. This hinders accurate interpretation of
Climate change effect on Betula (birch) and Quercus (oak) pollen seasons in the United States.
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Climatic change is expected to affect the spatiotemporal patterns of airborne allergenic pollen, which has been found to act synergistically with common air pollutants, such as ozone, to cause allergic airway disease (AAD). Observed airborne pollen data from six stations from 1994 to 2011 at Fargo
Behaviour of Quercus pollen in the air, determination of its sources and transport through the atmosphere of Mexico City and conurbated areas.
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Pollen allergies have a remarkable clinical impact all over world. Quercus pollen is the main allergen in many parts of world. Due to the health impacts caused by exposure to oak pollen, the objectives of this study are to characterise the aerobiological behaviour of Quercus pollen and to determine
Use of standardized and conventional allergen extracts in prick skin testing.
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This study examined whether commercially available conventional and standardized allergen extracts differ enough in potency to affect routine prick skin test results. Extracts of white oak, timothy, Bermuda, Russian thistle, short ragweed, sagebrush, Alternaria, and cat dander were examined in
Pollen and spores in the air of a hospital out-patient ward.
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BACKGROUND
Aerobiological studies of interest to the allergy specialist are routinely carried out using information from outdoor traps. However, most of our time is spent indoors and it is often the content of this air that is responsible for allergic phenomena.
METHODS
The air of a hospital
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